You might have noticed that after making a turn, when you release the steering wheel it will automatically return to the central position. You will be amazed to find out that this steering wheel returnability is not achieved by any complicated mechanism using springs or valves, instead, engineers have achieved the return motion of the steering wheel solely by giving the front wheels an angle, called a caster angle. Let’s discover the interesting physics behind how providing an angle to the front wheels makes the wheels, and the steering wheel, come back to their original positions.

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